/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.openjpa.jdbc.kernel.exps;

/**
 * Struct to hold the state of a query expressions instance.
 *
 * @author Abe White
 */
public class QueryExpressionsState {

    public static final ExpState[] EMPTY_STATES = new ExpState[0];

    public ExpState[] projections = EMPTY_STATES;
    public ExpState filter = null;
    public ExpState[] grouping = EMPTY_STATES;
    public ExpState having = null;
    public ExpState[] ordering = EMPTY_STATES;
}
